/* ===================================
   RESET & BASE STYLES
   =================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Primary Colors - Bright and Fun */
    --primary-color: #FF6B6B;
    --primary-dark: #E85555;
    --secondary-color: #4ECDC4;
    --secondary-dark: #3DB8AF;
    
    /* Accent Colors */
    --accent-yellow: #FFE66D;
    --accent-purple: #A8DADC;
    --accent-orange: #FF9F1C;
    --accent-green: #06D6A0;
    --accent-blue: #118AB2;
    
    /* Neutral Colors */
    --white: #FFFFFF;
    --light-gray: #F7F9FC;
    --gray: #E1E8ED;
    --dark-gray: #657786;
    --text-dark: #2D3436;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #FF6B6B 0%, #FF9F1C 100%);
    --gradient-secondary: linear-gradient(135deg, #4ECDC4 0%, #06D6A0 100%);
    --gradient-accent: linear-gradient(135deg, #A8DADC 0%, #118AB2 100%);
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.16);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    
    /* Typography */
    --font-primary: 'Poppins', sans-serif;
    --font-fun: 'Comic Neue', cursive;
}

body {
    font-family: var(--font-primary);
    color: var(--text-dark);
    line-height: 1.6;
    background-color: var(--light-gray);
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ===================================
   NAVIGATION
   =================================== */
.navbar {
    background: var(--white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: var(--spacing-sm) 0;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.nav-brand i {
    font-size: 1.8rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 3px;
    background: var(--gradient-primary);
    transition: width 0.3s ease;
}

.nav-menu a:hover {
    color: var(--primary-color);
}

.nav-menu a:hover::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--primary-color);
    border-radius: 3px;
    transition: all 0.3s ease;
}

/* ===================================
   HERO SECTION
   =================================== */
.hero {
    background: var(--gradient-primary);
    padding: var(--spacing-xl) 0;
    position: relative;
    overflow: hidden;
    min-height: 600px;
    display: flex;
    align-items: center;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    background: rgba(255, 255, 255, 0.9);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 50px;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
    box-shadow: var(--shadow-md);
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: var(--spacing-sm);
    line-height: 1.2;
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.15);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--white);
    margin-bottom: var(--spacing-md);
    opacity: 0.95;
}

.hero-features {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    margin-bottom: var(--spacing-md);
}

.feature-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    background: rgba(255, 255, 255, 0.2);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 20px;
    color: var(--white);
    font-weight: 600;
    backdrop-filter: blur(10px);
}

.feature-item i {
    font-size: 1.2rem;
}

.hero-illustration {
    position: relative;
    height: 500px;
}

.illustration-circle {
    position: absolute;
    border-radius: 50%;
    animation: float 6s ease-in-out infinite;
}

.circle-1 {
    width: 200px;
    height: 200px;
    background: rgba(255, 255, 255, 0.15);
    top: 10%;
    right: 20%;
    animation-delay: 0s;
}

.circle-2 {
    width: 150px;
    height: 150px;
    background: rgba(255, 255, 255, 0.1);
    bottom: 30%;
    right: 10%;
    animation-delay: 2s;
}

.circle-3 {
    width: 100px;
    height: 100px;
    background: rgba(255, 255, 255, 0.2);
    top: 50%;
    left: 10%;
    animation-delay: 4s;
}

.hero-emoji {
    position: absolute;
    font-size: 4rem;
    animation: bounce 3s ease-in-out infinite;
}

.hero-emoji:nth-child(4) {
    top: 10%;
    left: 15%;
    animation-delay: 0s;
}

.hero-emoji:nth-child(5) {
    top: 50%;
    right: 10%;
    animation-delay: 1s;
}

.hero-emoji:nth-child(6) {
    bottom: 20%;
    left: 25%;
    animation-delay: 2s;
}

.hero-emoji:nth-child(7) {
    bottom: 40%;
    right: 30%;
    animation-delay: 3s;
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(180deg); }
}

@keyframes bounce {
    0%, 100% { transform: translateY(0) scale(1); }
    50% { transform: translateY(-15px) scale(1.1); }
}

/* ===================================
   BUTTONS
   =================================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.8rem 1.8rem;
    border: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    box-shadow: var(--shadow-md);
}

.btn-primary {
    background: var(--white);
    color: var(--primary-color);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: var(--gradient-secondary);
    color: var(--white);
}

.btn-secondary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.btn-large {
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
}

/* ===================================
   SECTION HEADERS
   =================================== */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: var(--spacing-sm);
}

.section-header p {
    font-size: 1.2rem;
    color: var(--dark-gray);
}

/* ===================================
   SCHEDULE SECTION
   =================================== */
.schedule-section {
    padding: var(--spacing-xl) 0;
    background: var(--light-gray);
}

.schedule-timeline {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.day-card {
    background: var(--white);
    border-radius: 20px;
    padding: var(--spacing-md);
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
}

.day-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.day-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 3px solid var(--gray);
}

.day-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: var(--white);
}

.day-card[data-day="tuesday"] .day-icon {
    background: var(--gradient-secondary);
}

.day-card[data-day="wednesday"] .day-icon {
    background: linear-gradient(135deg, #A8DADC 0%, #FF6B6B 100%);
}

.day-card[data-day="thursday"] .day-icon {
    background: linear-gradient(135deg, #FFE66D 0%, #FF9F1C 100%);
}

.day-card[data-day="friday"] .day-icon {
    background: var(--gradient-accent);
}

.day-info h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-dark);
}

.day-info .date {
    color: var(--dark-gray);
    font-size: 0.95rem;
}

.activities {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.activity-card {
    display: grid;
    grid-template-columns: 120px 1fr;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: var(--light-gray);
    border-radius: 15px;
    border-left: 4px solid var(--primary-color);
}

.activity-time {
    font-weight: 700;
    color: var(--primary-color);
    display: flex;
    align-items: center;
}

.activity-content h4 {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-xs);
    color: var(--text-dark);
}

.activity-content h4 i {
    margin-right: var(--spacing-xs);
    color: var(--secondary-color);
}

.activity-content p {
    color: var(--dark-gray);
    font-size: 0.95rem;
    margin-bottom: var(--spacing-xs);
}

.activity-tags {
    display: flex;
    gap: var(--spacing-xs);
    flex-wrap: wrap;
}

.tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: var(--white);
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--secondary-color);
    border: 2px solid var(--secondary-color);
}

/* ===================================
   STUDENTS SECTION
   =================================== */
.students-section {
    padding: var(--spacing-xl) 0;
    background: var(--white);
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.info-card {
    background: var(--light-gray);
    padding: var(--spacing-md);
    border-radius: 20px;
    text-align: center;
    transition: all 0.3s ease;
    border: 3px solid transparent;
}

.info-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-lg);
}

.info-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--white);
    margin: 0 auto var(--spacing-sm);
}

.info-card:nth-child(2) .info-icon {
    background: var(--gradient-secondary);
}

.info-card:nth-child(3) .info-icon {
    background: linear-gradient(135deg, #A8DADC 0%, #FF6B6B 100%);
}

.info-card:nth-child(4) .info-icon {
    background: linear-gradient(135deg, #FFE66D 0%, #FF9F1C 100%);
}

.info-card:nth-child(5) .info-icon {
    background: var(--gradient-accent);
}

.info-card:nth-child(6) .info-icon {
    background: linear-gradient(135deg, #06D6A0 0%, #118AB2 100%);
}

.info-card h3 {
    font-size: 1.3rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-dark);
}

.info-card p {
    color: var(--dark-gray);
    line-height: 1.8;
}

.encouragement-box {
    background: var(--gradient-primary);
    padding: var(--spacing-lg);
    border-radius: 20px;
    text-align: center;
    color: var(--white);
    box-shadow: var(--shadow-lg);
}

.encouragement-box h3 {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
}

.encouragement-box p {
    font-size: 1.2rem;
    opacity: 0.95;
}

/* ===================================
   ORGANIZATIONS SECTION
   =================================== */
.organizations-section {
    padding: var(--spacing-xl) 0;
    background: var(--light-gray);
}

.org-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.org-intro,
.org-expectations {
    background: var(--white);
    padding: var(--spacing-md);
    border-radius: 20px;
    box-shadow: var(--shadow-sm);
}

.org-intro h3,
.org-expectations h3,
.org-benefits h3 {
    font-size: 1.8rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-dark);
}

.org-intro p {
    color: var(--dark-gray);
    line-height: 1.8;
    font-size: 1.05rem;
}

.org-benefits {
    background: var(--gradient-secondary);
    padding: var(--spacing-md);
    border-radius: 20px;
    color: var(--white);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-sm);
}

.benefit-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: rgba(255, 255, 255, 0.15);
    padding: var(--spacing-sm);
    border-radius: 15px;
    backdrop-filter: blur(10px);
}

.benefit-item i {
    font-size: 1.5rem;
}

.org-expectations ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.org-expectations ul li {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    color: var(--dark-gray);
    font-size: 1.05rem;
    line-height: 1.6;
}

.org-expectations ul li i {
    color: var(--accent-green);
    font-size: 1.2rem;
    margin-top: 0.25rem;
}

/* ===================================
   REGISTRATION FORM
   =================================== */
.registration-form-container {
    background: var(--white);
    padding: var(--spacing-lg);
    border-radius: 20px;
    box-shadow: var(--shadow-md);
}

.registration-form-container h3 {
    font-size: 1.8rem;
    margin-bottom: var(--spacing-md);
    color: var(--text-dark);
    text-align: center;
}

.org-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.form-group label {
    font-weight: 600;
    color: var(--text-dark);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 0.8rem;
    border: 2px solid var(--gray);
    border-radius: 10px;
    font-family: var(--font-primary);
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(255, 107, 107, 0.1);
}

.checkbox-group,
.radio-group {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.checkbox-label,
.radio-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    cursor: pointer;
    padding: 0.5rem var(--spacing-sm);
    background: var(--light-gray);
    border-radius: 10px;
    border: 2px solid transparent;
    transition: all 0.3s ease;
}

.checkbox-label:hover,
.radio-label:hover {
    border-color: var(--primary-color);
}

.checkbox-label input,
.radio-label input {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.form-success {
    background: var(--gradient-secondary);
    padding: var(--spacing-lg);
    border-radius: 20px;
    text-align: center;
    color: var(--white);
}

.form-success i {
    font-size: 4rem;
    margin-bottom: var(--spacing-sm);
}

.form-success h3 {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
}

.form-success p {
    font-size: 1.2rem;
}

.contact-info {
    background: var(--light-gray);
    padding: var(--spacing-md);
    border-radius: 20px;
    text-align: center;
}

.contact-info h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-dark);
}

.contact-info p {
    color: var(--dark-gray);
    margin-bottom: var(--spacing-xs);
}

/* ===================================
   ABOUT SECTION
   =================================== */
.about-section {
    padding: var(--spacing-xl) 0;
    background: var(--white);
}

.about-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-md);
}

.about-card {
    background: var(--light-gray);
    padding: var(--spacing-md);
    border-radius: 20px;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

.about-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.about-icon {
    width: 70px;
    height: 70px;
    background: var(--gradient-primary);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: var(--white);
    margin-bottom: var(--spacing-sm);
}

.about-card:nth-child(2) .about-icon {
    background: var(--gradient-secondary);
}

.about-card:nth-child(3) .about-icon {
    background: linear-gradient(135deg, #A8DADC 0%, #FF6B6B 100%);
}

.about-card:nth-child(4) .about-icon {
    background: linear-gradient(135deg, #FFE66D 0%, #FF9F1C 100%);
}

.about-card:nth-child(5) .about-icon {
    background: var(--gradient-accent);
}

.about-card:nth-child(6) .about-icon {
    background: linear-gradient(135deg, #06D6A0 0%, #118AB2 100%);
}

.about-card h3 {
    font-size: 1.4rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-dark);
}

.about-card p {
    color: var(--dark-gray);
    line-height: 1.8;
    margin-bottom: var(--spacing-sm);
}

.about-card ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.about-card ul li {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-xs);
    color: var(--dark-gray);
    line-height: 1.6;
}

.about-card ul li::before {
    content: '✓';
    color: var(--accent-green);
    font-weight: 700;
    font-size: 1.2rem;
}

.cta-box {
    background: var(--gradient-accent);
    padding: var(--spacing-lg);
    border-radius: 20px;
    text-align: center;
    color: var(--white);
    margin-top: var(--spacing-lg);
    box-shadow: var(--shadow-lg);
}

.cta-box h3 {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
}

.cta-box p {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-md);
    opacity: 0.95;
}

/* ===================================
   FOOTER
   =================================== */
.footer {
    background: var(--text-dark);
    color: var(--white);
    padding: var(--spacing-lg) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.footer-section h4 {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-sm);
    color: var(--accent-yellow);
}

.footer-section p,
.footer-section ul li {
    color: var(--gray);
    margin-bottom: 0.5rem;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li a {
    color: var(--gray);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: var(--primary-color);
}

.social-links {
    display: flex;
    gap: var(--spacing-sm);
}

.social-links a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.2rem;
    transition: all 0.3s ease;
}

.social-links a:hover {
    background: var(--primary-color);
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--dark-gray);
}

/* ===================================
   RESPONSIVE DESIGN
   =================================== */
@media (max-width: 968px) {
    .hero .container {
        grid-template-columns: 1fr;
    }
    
    .hero-illustration {
        height: 300px;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        background: var(--white);
        flex-direction: column;
        padding: var(--spacing-md);
        box-shadow: var(--shadow-lg);
        transition: left 0.3s ease;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
    
    .activity-card {
        grid-template-columns: 1fr;
    }
    
    .activity-time {
        justify-content: center;
        padding: var(--spacing-xs);
        background: var(--primary-color);
        color: var(--white);
        border-radius: 10px;
    }
    
    .info-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-xl: 2rem;
        --spacing-lg: 1.5rem;
    }
    
    .hero {
        padding: var(--spacing-md) 0;
        min-height: auto;
    }
    
    .hero-title {
        font-size: 1.75rem;
    }
    
    .btn-large {
        padding: 0.8rem 1.5rem;
        font-size: 1rem;
    }
    
    .hero-features {
        justify-content: center;
    }
}

/* ===================================
   ANIMATIONS
   =================================== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.day-card,
.info-card,
.about-card {
    animation: fadeIn 0.6s ease-out;
}

/* Stagger animation for cards */
.day-card:nth-child(1) { animation-delay: 0.1s; }
.day-card:nth-child(2) { animation-delay: 0.2s; }
.day-card:nth-child(3) { animation-delay: 0.3s; }
.day-card:nth-child(4) { animation-delay: 0.4s; }
.day-card:nth-child(5) { animation-delay: 0.5s; }